Whakaoti mō b
b=8
Tohaina
Kua tāruatia ki te papatopenga
\left(2b-7\right)\times 8=\left(b+10\right)\times 4
Tē taea kia ōrite te tāupe b ki tētahi o ngā uara -10,\frac{7}{2} nā te kore tautuhi i te whakawehenga mā te kore. Me whakarea ngā taha e rua o te whārite ki te \left(2b-7\right)\left(b+10\right), arā, te tauraro pātahi he tino iti rawa te kitea o b+10,2b-7.
16b-56=\left(b+10\right)\times 4
Whakamahia te āhuatanga tohatoha hei whakarea te 2b-7 ki te 8.
16b-56=4b+40
Whakamahia te āhuatanga tohatoha hei whakarea te b+10 ki te 4.
16b-56-4b=40
Tangohia te 4b mai i ngā taha e rua.
12b-56=40
Pahekotia te 16b me -4b, ka 12b.
12b=40+56
Me tāpiri te 56 ki ngā taha e rua.
12b=96
Tāpirihia te 40 ki te 56, ka 96.
b=\frac{96}{12}
Whakawehea ngā taha e rua ki te 12.
b=8
Whakawehea te 96 ki te 12, kia riro ko 8.
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